140223343121 has 4 divisors (see below), whose sum is σ = 140230080000. Its totient is φ = 140216606244.

The previous prime is 140223343111. The next prime is 140223343151. The reversal of 140223343121 is 121343322041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140223343121 - 2¹⁰ = 140223342097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140223343111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3337121 + ... + 3378878.

It is an arithmetic number, because the mean of its divisors is an integer number (35057520000).

Almost surely, 2^140223343121 is an apocalyptic number.

It is an amenable number.

140223343121 is a deficient number, since it is larger than the sum of its proper divisors (6736879).

140223343121 is an equidigital number, since it uses as much as digits as its factorization.

140223343121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736878.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 140223343121 its reverse (121343322041), we get a palindrome (261566665162).

The spelling of 140223343121 in words is "one hundred forty billion, two hundred twenty-three million, three hundred forty-three thousand, one hundred twenty-one".